16645140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 55211520

約数和(自身を除く): 38566380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 157, 171, 180, 186, 190, 228, 279, 285, 310, 314, 342, 372, 380, 465, 471, 558, 570, 589, 620, 628, 684, 785, 855, 930, 942, 1116, 1140, 1178, 1395, 1413, 1570, 1710, 1767, 1860, 1884, 2355, 2356, 2790, 2826, 2945, 2983, 3140, 3420, 3534, 4710, 4867, 5301, 5580, 5652, 5890, 5966, 7065, 7068, 8835, 8949, 9420, 9734, 10602, 11780, 11932, 14130, 14601, 14915, 17670, 17898, 19468, 21204, 24335, 26505, 26847, 28260, 29202, 29830, 35340, 35796, 43803, 44745, 48670, 53010, 53694, 58404, 59660, 73005, 87606, 89490, 92473, 97340, 106020, 107388, 134235, 146010, 175212, 178980, 184946, 219015, 268470, 277419, 292020, 369892, 438030, 462365, 536940, 554838, 832257, 876060, 924730, 1109676, 1387095, 1664514, 1849460, 2774190, 3329028, 4161285, 5548380, 8322570, 16645140]

約数ペア:

[(1, 16645140), (2, 8322570), (3, 5548380), (4, 4161285), (5, 3329028), (6, 2774190), (9, 1849460), (10, 1664514), (12, 1387095), (15, 1109676), (18, 924730), (19, 876060), (20, 832257), (30, 554838), (31, 536940), (36, 462365), (38, 438030), (45, 369892), (57, 292020), (60, 277419), (62, 268470), (76, 219015), (90, 184946), (93, 178980), (95, 175212), (114, 146010), (124, 134235), (155, 107388), (157, 106020), (171, 97340), (180, 92473), (186, 89490), (190, 87606), (228, 73005), (279, 59660), (285, 58404), (310, 53694), (314, 53010), (342, 48670), (372, 44745), (380, 43803), (465, 35796), (471, 35340), (558, 29830), (570, 29202), (589, 28260), (620, 26847), (628, 26505), (684, 24335), (785, 21204), (855, 19468), (930, 17898), (942, 17670), (1116, 14915), (1140, 14601), (1178, 14130), (1395, 11932), (1413, 11780), (1570, 10602), (1710, 9734), (1767, 9420), (1860, 8949), (1884, 8835), (2355, 7068), (2356, 7065), (2790, 5966), (2826, 5890), (2945, 5652), (2983, 5580), (3140, 5301), (3420, 4867), (3534, 4710)]